Converters

Radians to Degrees

A radians to degrees converter switches angle measures between the two units. Enter an angle in radians to get degrees using the factor 180/π.

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Two ways to measure angles

Degrees split a circle into 360 parts; radians define an angle by the length of the arc it cuts off relative to the radius. A full circle is 2π radians, so π radians equals 180°.

The conversion factor

Multiply radians by 180/π to get degrees. The converter applies the exact factor rather than a rounded one, so special values like π/6 → 30° come out exact.

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Frequently asked questions

1

How do I convert radians to degrees?

Multiply radians by 180/π (about 57.296). For example, π radians equals 180°, and π/2 radians equals 90°.

2

What is a radian?

Radians measure angles as arc length over radius. A full circle is 2π radians — about 6.283 — instead of 360 degrees.

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